public function convertToArray($datas) { $return = array(); foreach ($datas as $data) { $convertList = Utility::getUnitConverted($data->getId()); $convertList = json_encode($convertList); $array = array(); $array['id'] = $data->getId(); $array['name'] = $data->getName(); $array['converted'] = $convertList; $return[] = $array; } return $return; }